Babbitting apparatus.



O. M. KUHN.

BABBITTING APPARATUS.

APPLICATION FILED JUNE 5, 1914.

1,115,687. V Patented N0v.3,191L l Witnesses- Attorney s i 1 lf ll lli'fifi fs lfd l hld PATENT fih ji lill li CHARLES H. ISZUHN, OF KEARNEY, NEBRASKA, ASSIGNOR OLE ONE-THIRD TO ADAM M. KUHN AND JACOB E, HER/MAN, BOTH OF KEARNEY, NEBRASKA.

nnnni'rrme APPARATUS.

Specification of Letters Patent.

Application filed June 5, 1914. Serial lfl'o. 843,273.

To all whom it may concern:

Be it known that l, CHARLES M. KUHN,

a citizen of the United States, residing at babbitting the bearings or other parts as well.

One of the specific objects of the present invention is to provide a novel means for effectively holding the pieman-or connecting rod in true or proper position while being babbitted or relined.

Another object of the present invention to provide unique means for molding the liner of Babbitt metal within the bearing of the pitnian or connecting rod.

A further object of the present invention is to provide a novel means for trimming,

the interior and ends of the Babbitt metal liner.

It is also within the scope of the present invention to provide a babbitting apparatus which will be of improved construction throughout, to enhance the utility thereof, and whereby a pitman or connecting 'rod may be readily and properly rebabbitted or relined by inexperienced persons, as well as skilled mechanics.

Vl ith the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed. it being understood that changes in the precise emlmdimenlof the invention herein disclosed can be. made within the scope of what is claimed without de parting from the spirit of the invention.

The lllVQIltlOll has been illustrated in its preferred embodiment in the accompanying drawing, wherein I Figure l is a plan view of the apparatus, portions being shown in section, and the centering cone being applied to the bearing of the itman or connecting rod. Fig. 2 is a longitudinal section of the apparatus, portions being broken away, illustrating the mold elements appliedto the bearing of the pitinan or connecting rod. Fig. 3 is a transverse section of the apparatus, illustratil'ig the cutter in position for boring or trimming out the Babbitt metal liner. Fig. at is all enlarged sectional detail illustrating the cuttor for trimming the ends of the Babbitt metal liner. Fig. 5 is an enlarged elevation of the cutting device illustrated in Fig.- i. Fig. 6 is a transverse sectional detail illustrating the device in condition for casting the Babbitt metal.

The frame of the present invention cmbodies a base or body 1 having attached thereon a pair of end brackets or standards 2 and 3 having the respective hearings or sleeves i and 5 at their upper ends.

A tubular ad usting, screw 6 is threaded through the bearing 0r sleeve i, and is equipped at its outer end with a suitable.

hand wheel 7 thereof.

A shaftv or spindle 8 is journaled and slid able through the tubular adjusting screw 6, and through the bearing or sleeve 5, the adjusting screw 6 serving as a bearing for the shaft or spindle also. That end of the shaft for conveniencing the rotation or spindle S which protrudes beyond the hand wheel 7 of the adjusting screw, has keyed or securedthereon, a hand wheel 9 provided with a crank handle 10, whereby the hand wheel 9 may be readily turned by hand to rotate the shaft or spindle S. The shaft or spindle 8 is adapted to be withdrawn from the bearing 5, sliding the shaft or spindle through the tubular screw 6, the hand wheel 9 being moved away from the hand wheel 7. in order to hold the shaft or spindle 8 against longitudinal movement relative to the screw (3 to thereby cause the shaft 8 to he slid longitudinally when the screw 6 is rotated, a screw 11 iscarried by the hub of the hand wheel 7 and engages an annular groove 12 provided upon the shaft Thus, when the screw ii. is engaged into the groove 12, the shaft is caused to move longitudinally with the adjusting screw, but the shaft may rotate readily within the screw for the purposes which will hereinafter appear.

The frame of the machine or apparatus further includes a transverse bracket. disposed at or projecting to one side, and hawing its inner end attached to the base 1 be tween the brackets or standards and 3, but

ifatented Nov. 3, 1914;.

connecting rod bearing.

adjacent the standard 3. A side bracket 18 is provided with an elongated slot 14:, in which is slidably and removably disposed a clamping bolt 15- A pitman or connecting rod clamp 16 is Carried by the inner end of the bracket 13, beyond the inner end of the slot 14:, and this clamp 16 embodies an upright clamping bar 17 coiiperating with the inner end 01 the bracket 13 to provide means for receiving the body of a pitmah or connecting rod. Bolts 18 are engaged through the ends of the clamping bar 17 and the inner end portion of the bracket 13 and a jam screw 19 is threadedly engaged through the bracket 13 between the draft or clamping bolts 18 and cooperates with the intermediate portion of the clamping bar 17 to clamp or bind the pitman or connecting rod therebetween.

Various devices are applicable L0 the shaft 8, for cooperation with the bearing of the pitman or connecting rod which is applied to the bracket or holder 13. Thus, the centering cone 20 havinga longitudinal bore or opening is adapted to he slid onto the shaft 8 as will b reinafter appear.

A mo]. ing device is also applicable to the shaft 8, and embodies a pair oficollars 21 having flanges or heads 2-2 at their adjacent ends and adapted to rest against or coiiperate with the sides or faces of the pitman or The faces of the flanges or heads are provided with angular grooves 23 for formin the beads or flanges at the ends of the Baiibitt metal liner as will hereinafter appear. Each of the col has 21 also carries a screw 24 for clamping it in place upon the shaft 8, and one of the flanges or heads 22 is provided with a gate 25 for permitting the molten Babbitt metal to be poured into the molding device, as will hereinafter appear.

The shaft 8 is provided at the proper point, with a diametrical opening 26 therethrough in which a cutter 27 .is disposable, a set screw 28 being carried by the shaft 8 to bind the cutter 27 in any adjusted position to which it is set within the opening or socket 26.

A cutting or trimming device is applicable to each of the flanges or heads 22 of the collars 21 and embodies an approximately U- shaped member'29 adapted to straddle one or the other of the flanges or heads 22, one arm of the member 29 having a set screw 30 for binding the said member in place upon the corresponding flange or head 22. The other arm, of the member 29, which is adapted to be disposed against the face of-the flange or head- 22, is provided with a longitudinal slot 31 in which is fitted a cutting blade 32. A set screw 33 is carried by that arm of the member 29 which has the slot 31, to bind or clamp the cutting blade-32 within the said slot. The cutting blade 32 projects from the corresponding arm of the member 29, and its free or outer edge is provided with a recess or reentrant portion 34 which is in the form of the bead or flange at the end of a Babbitt metal liner,

In order that the use of the present apparatus may be better understood, an ordinary pitman or connecting rod has been illustrated in the drawing, the same having the bearing at one end to engage the usual (rank shaft, and the bearing 37 at its other end for embracing the wrist pin of the piston. Supposing it is desired to rebabbitt or reline the bearing 36 of the pitman orconnecting rod 35, then the capot the bearing 36 is first removed, and the old liner taken out. The cap of the bearing, 36 is then 'replaced, and a'pair of division plates 38 of suitable size and proportions are clamped under the cap of the bearing 36, to divide the liner when it is molded within the hearing, it being understood'that the liners are ordinarily divided in halves.

The next step is to apply the pitman or connecting rod 35 to the bracket or lljzlilr'ai' 13. To accomplish this, the pitman or con nccting rod 35 is placed between the clamp ing plate 17 and the screw 19, which may be readily accomplished, and the clamping bolt 15 which has been previously removed,'and inserted through the wrist pin bearing 37 oi the pitman or connecting rod and through the slot 14. The shaft 8 is then withdrawn from the bearing 5, to permit the bearing 36 of the pitman or connecting rod to be adjusted or set approximately coaxial with the shaft, and when the shaft 8 has been retracted through the tubular screws 6, the centering cone 20 is slid onto the inner end of the shaft and the shaft is again brought to normal position, as seen in F n. 1. T the centering cone 20 may e i a portion or smallest end insert 1 bearing 36 of the pitman or conn to center the said bearing with cc Ne to the shaft 8. lVhen the bearing 36 is properly centered, the bolt 15 is tightened, to clamp the outer end of the pitman or near necting rod, and the bolts 18 and jam screw 19 are then tightened to clamp the central or ,1.-

body portion of pitman or connecting rod. In this manner, the pitman or connecting rod is held firmly in true position in order that the bearing 36 will be held in coaxial relation with'respect to the shaft 8. The shaft 8 is then again retracted from the bearing 5 and the pitrnan or connectingrod bearing 36, so that the centering cone 2!) may he slipped off of the shaft.

The molding device is then assembled with the shaft 8 and the bearing 36, the collars 21 being applied on the shaft as; 1 w opposite sides of the bearing 36 when the shaft 8 is slid back to normal position, as seen in Fig. 2. The flanges or plates 22 are then slid against or adjacent the opposite sides of the hearing 36, and are clamped in place by tightening the set'screws 24. It is also desirable to place a tubular or hollow core 39 upon the shaft 8 between the'fianges or plates 93 to increase the bore of the liner when it is cast. The molten Babbitt metal is then poured through the gate 25 to fill the mold formed by the flanges or plates 22 y in connection with the walls of the bearing 36. When the metal hardens or sets, it will form the rough liner a0 and the grooves 23 of the flanges or heads 22 will form the beads or flanges 41 at the ends of theliner 4:0. The collars 21 are then-loosened, by loosening the set screw 24, and the said collars are then either slid away from the hear ing 36, or removed from the shaft 8, to expose the liner 40. 'The sleeve or tubular core 39 is also slid out of the liner 40. The liner 40 is then reamed out, by applying the cutter 27 Within the opening 26 of the shaft 8, and clamping the cutter in projected position by tightening the set screw 28. The screw or key 11 of the adjusting screw 6 is then engaged to the annular groove 12 of the shaft 8, whereby the shaft will be caused to move longitudinally with the adjusting screw. The shaft is then rotated through the medium of the crank wheel 9, and the screw 6 is threaded. inwardly slowly, to feed the shaft 8 longitudinally, and whereby the cutter 27 will bore out the liner l0 to the proper internal diameter. The cutter 2'? is then withdrawn, or pushed back completely within the opening 26 of the shaft, so as to be out of the way. The final step in completing the liner is to trim the ends or beads 41 thereof. This is accomplished by placing the member 29 astride one of the flanges r plates 22, so that the cutting blade 32 will properly cotiperate or engage the corre sponding head or flange 4:1 of the liner 4-6.

The shaft 8 is then rotated. and is fed longitudinally properly through the medium of the adjusting screw 6, in order that the recess 34 of the cutting blade 32 will properly trim the corresponding bead or flange 41 of the liner. The member 29 is then removed and applied to the other flange or plate 22, to trim the bead or flange at the other end of the liner. ,It is to be understood, that when the member 29 is applied to one of the flanges or plates 22, the corresponding collar 21 is clamped in place upon the shaft 8, whereby the trimming blade 32 will be properly moved longitudinally with the shaft, as well as being rotated to trim oil the end or bend of the liner. The liner is then completed, and the pitnian or connect-- ing rod may be removed by first retracting the shaft 8 and removing the collars 21, and then releasing the pitman or connecting rod from the clamp ldaud clamping bolt 15. When it is desired to form a number of .ing, and a connecting rod holder a rs up similar liners, the pitman or connecting rod may be repeatedly employed while held bv the bracket or holder 18, the completed liner being removed each time by detaching the cap of the bearing 36, in which event a new or successive liner may be formed in the manner above described. After the liner is completed, the dividing plates are removed by removing the cap of the bearing 36, and the bearing 36 will then be in condi tion for use to be applied to the cr'anl shaft.

The present apparatus is adapted for rebabbitting or relining bearings of various pitmen or connecting rods, and provides means whereby an inexperienced person, as well as a skilled mechanic may readily rebabbitt or reline the pitman or connebtinu rod bearings, The other advantages and capabilities of the present apparatus will be obvious to those familiar in the art, and further comment is deemed unnecessary.

Having thus described the invention, what is claimed as new is 2- 1. In an apparatus of the character described, a pair of bearings, a tubular adgusting screw threaded through one bearing, a shaft journaled through the said screw and the other bearing and adapted to be retracted from the last mentioned bearing, the ad usting screw and shaft having interengageable portions tohold the shaft against longitudinal movement relative to the screw, and a clamp disposed between the d bearings and adapted to hold a conne rod with one of its bearings coaxial witi the shaft.

2. In 'an apparatus of the character described, a pair of bearings, a shaft journaled ,therethrough and adapted to be retracted from one the said l 227fll s, and it connecting rod. hplder disposed intermediate the said bearings and including a bracket having a slot, a clamping bolt engaged in the said slot and adapted to engage one bearing of a connecting rod, and an adjustable clamp carried by one end of the bracket to clamp the body of the connecting rod to hold the other bearing thereof coaxial with the shaft.

In an apparatus of the character described, a pair of bearings, a shaft journaled thcrethroug'h and retractable from one beardisposed between the said bearings and including a bracket, an adjustable chunping bolt carried thereby and adapted to engage one bearing of a connecting rod, a clamping bar, bolts connecting the ends oi? the clamping bar and said bracket, and a i in screw threadedly engaging through the bracket and coiiperating with the central portion of the said bar to clamp the body of a connecting rod.

4. in an apparatus of the character described, a pair of bearings, a shaft journaled therethrough and retractable from one hearing, a clamp disoosed between the said bean ings and adapted to hold a. connecting rodf as my own, I have hereto affixed my signw with omi belamng-goaigiiailwith-tilesklfaft, 2mg tau-re in the presence of two Witnesses. spairo patesaplca 'etsoiasssmssui 1 1 plates being adapted to coperate with the CHARLLG KUHN' sides of the said heating and having means Witnesses: v for ciampingfthem in place upon the shaft. E H..B. WATSON,

In testimony that? I claim the. foregoing: J; S. DORNNELL. 

